Now from some insight from someone who actually owns a new(ish) MY13 3.0CRD Grand Cherokee and takes it off road.

Mate, i have done a ***** load of off road with this car and beside having to take the 7 clips out of the front bumper to remove the air dam, the car has done everything i have asked of it with ease and (besides some extra power) it is totally stock... even stock tyres.

Would probably be better off checking on some Jeep forums. I know Drive took one of these across the simmo and up big red but then how hard they really pushed it is unknown as like most of those publications it was probably a sponsored ad.

My mate took his Jeep Laredo 2013 and I took my Colorado 7 across the Simpson last week (beginning of August). We went via Rig, WAA, French and QAA. He got stuck a few times, damaged his black lower plastic on the front b/bar, and lost his hooks at the front (apparently yellow ). Once he 'learnt' how to drive it across the desert (all vehicles are different) then he didn't have too many problems. Would he drive it again across the Simpson, prob not.